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How to decrypt the password using Powershell

  • March 4, 2016 at 4:33 pm

    #309176

    Hello,

    I saved the password to a file. But when I try to read it , I do not get the actual one. How to decypher the pswd. Please suggest.

    Read-Host "Enter Password" -AsSecureString | ConvertFrom-SecureString | Out-File "C:\Temp\Password.txt"

    $pass = Get-Content "C:\Temp\Password.txt" | ConvertTo-SecureString

    $pass

    Password: System.Security.SecureString

    Do I need to again any of the PS function to convert to the actual value? Or, do I only need to use that as "Credential"?

    $User = "abcd"

    $File = "C:\Temp\Password.txt"

    $MyCredential=New-Object -TypeName System.Management.Automation.PSCredential ` -ArgumentList $User, (Get-Content $File | ConvertTo-SecureString)

    Thanks.

  • March 4, 2016 at 5:29 pm

    #1863301

    Even could not able to pass it properly to the connection string using $bytes and username too.

    $password = read-host -prompt "Enter your Password"

    $secure = ConvertTo-SecureString $password -force -asPlainText

    $secure

    $bytes = ConvertFrom-SecureString $secure

    $bytes

    Thanks.

  • March 4, 2016 at 5:33 pm

    #1863302

    Using this encrypted pswd, failing to connect to Oracle Instance..

    $password = read-host -prompt "Enter your Password"

    $secure = ConvertTo-SecureString $password -force -asPlainText

    $secure

    $bytes = ConvertFrom-SecureString $secure

    $bytes

    $username = "usr"

    $tnsalias = "TNS.ORA"

    $script = Get-content "D:\Powershell_Output_test\Script\Oracle_Script\select.sql"

    $script

    $outputfile = "D:\Powershell_Output_test\output_Oracle\sql-output.txt"

    $script | sqlplus -silent $username/$bytes@$tnsalias $script | Out-File $outputfile

    Thanks.

  • March 6, 2016 at 5:37 am

    #1863368

    SQL-DBA-01 (3/4/2016)

    Even could not able to pass it properly to the connection string using $bytes and username too.

    $password = read-host -prompt "Enter your Password"

    $secure = ConvertTo-SecureString $password -force -asPlainText

    $secure

    $bytes = ConvertFrom-SecureString $secure

    $bytes

    Generally use

    $password = read-host -prompt "Enter your Password" -AsSecureString

    To decrypt the secure string you would use

    $BSTR = `

    [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($password)

    $PlainPassword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR)

    Write-Host "Password is: $($PlainPassword)"

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" 😉

  • March 7, 2016 at 9:19 am

    #1863494

    Many thanks Perry. It is working.

    Thanks.

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